... :polypropylene 2. size:5,'',10'',20'',30'',40'' 3. modle: slim, jumbo 4. pp filter cartridges 5. manufacture Main ProductProduct ... Number:LY-PPFColor:whiteSize:5,10,20,30,40 inchQuality:ExcellentInner diameter:28,30mmOuter diameter:60~62mmInterface:flat type, 222 ... , 226Core size:core, without corematerial:polypropylenemicron rating:1,5,10,20,50, ...